i think better to give the model name written on the sticker under the screen, not the model number behind the laptop

but if windows 7 drivers are not officially provided by Sony, you will need to take each unreconized drivers and search proper driver by searching its vid&pid on google
and if you want those utilities like OSD and keyboard shortcuts, try to find another model of the same type (for eg if ur model is vgn-fsXXX, find another fs) compatible with vista/seven

i did the same with my vgn-fs315, and all drivers were found, osd and shortcut are working, except aero cant be activated because of the graphic card is too old